21149248

素因数分解:

$2^6\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:227

約数の個数: 56

約数和(自身を含む): 43891200

約数和(自身を除く): 22741952

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 79, 89, 94, 158, 178, 188, 316, 356, 376, 632, 712, 752, 1264, 1424, 1504, 2528, 2848, 3008, 3713, 4183, 5056, 5696, 7031, 7426, 8366, 14062, 14852, 16732, 28124, 29704, 33464, 56248, 59408, 66928, 112496, 118816, 133856, 224992, 237632, 267712, 330457, 449984, 660914, 1321828, 2643656, 5287312, 10574624, 21149248]

約数ペア:

[(1, 21149248), (2, 10574624), (4, 5287312), (8, 2643656), (16, 1321828), (32, 660914), (47, 449984), (64, 330457), (79, 267712), (89, 237632), (94, 224992), (158, 133856), (178, 118816), (188, 112496), (316, 66928), (356, 59408), (376, 56248), (632, 33464), (712, 29704), (752, 28124), (1264, 16732), (1424, 14852), (1504, 14062), (2528, 8366), (2848, 7426), (3008, 7031), (3713, 5696), (4183, 5056)]